Free swap = 0kB Total swap = 0kB 2097051 pages RAM 0 pages HighMem/MovableOnly 384519 pages reserved 0 pages cma reserved ================================================================== BUG: KASAN: use-after-free in rxe_queue_cleanup+0xf4/0x100 drivers/infiniband/sw/rxe/rxe_queue.c:193 Read of size 8 at addr ffff888019e00690 by task syz-executor.0/30779 CPU: 0 PID: 30779 Comm: syz-executor.0 Not tainted 5.16.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0x8d/0x320 mm/kasan/report.c:247 __kasan_report mm/kasan/report.c:433 [inline] kasan_report.cold+0x83/0xdf mm/kasan/report.c:450 rxe_queue_cleanup+0xf4/0x100 drivers/infiniband/sw/rxe/rxe_queue.c:193 rxe_qp_do_cleanup+0x5d/0xa60 drivers/infiniband/sw/rxe/rxe_qp.c:804 execute_in_process_context+0x37/0x150 kernel/workqueue.c:3359 rxe_elem_release+0x9f/0x180 drivers/infiniband/sw/rxe/rxe_pool.c:407 kref_put include/linux/kref.h:65 [inline] rxe_create_qp+0x32c/0x3b0 drivers/infiniband/sw/rxe/rxe_verbs.c:450 create_qp+0x5ac/0x960 drivers/infiniband/core/verbs.c:1241 ib_create_qp_kernel+0x9d/0x310 drivers/infiniband/core/verbs.c:1352 ib_create_qp include/rdma/ib_verbs.h:3722 [inline] create_mad_qp+0x177/0x2d0 drivers/infiniband/core/mad.c:2910 ib_mad_port_open drivers/infiniband/core/mad.c:2991 [inline] ib_mad_init_device+0xd4d/0x13f0 drivers/infiniband/core/mad.c:3082 add_client_context+0x405/0x5e0 drivers/infiniband/core/device.c:720 enable_device_and_get+0x1cd/0x3b0 drivers/infiniband/core/device.c:1331 ib_register_device drivers/infiniband/core/device.c:1419 [inline] ib_register_device+0x854/0xb50 drivers/infiniband/core/device.c:1365 rxe_register_device+0x2fe/0x3b0 drivers/infiniband/sw/rxe/rxe_verbs.c:1146 rxe_add+0x1331/0x1710 drivers/infiniband/sw/rxe/rxe.c:248 rxe_net_add+0x8c/0xe0 drivers/infiniband/sw/rxe/rxe_net.c:543 rxe_newlink drivers/infiniband/sw/rxe/rxe.c:270 [inline] rxe_newlink+0xa9/0xd0 drivers/infiniband/sw/rxe/rxe.c:251 nldev_newlink+0x30a/0x560 drivers/infiniband/core/nldev.c:1717 rdma_nl_rcv_msg+0x36d/0x690 drivers/infiniband/core/netlink.c:195 rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline] rdma_nl_rcv+0x2ee/0x430 drivers/infiniband/core/netlink.c:259 netlink_unicast_kernel net/netlink/af_netlink.c:1315 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1341 netlink_sendmsg+0x904/0xdf0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7efe13efdae9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007efe12e73188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007efe14010f60 RCX: 00007efe13efdae9 RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000003 RBP: 00007efe13f57ff7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc6577340f R14: 00007efe12e73300 R15: 0000000000022000 Allocated by task 30779: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc mm/kasan/common.c:513 [inline] ____kasan_kmalloc mm/kasan/common.c:472 [inline] __kasan_kmalloc+0xa9/0xd0 mm/kasan/common.c:522 kmalloc include/linux/slab.h:590 [inline] kzalloc include/linux/slab.h:724 [inline] rxe_queue_init+0x99/0x510 drivers/infiniband/sw/rxe/rxe_queue.c:66 rxe_qp_init_req drivers/infiniband/sw/rxe/rxe_qp.c:233 [inline] rxe_qp_from_init+0x844/0x1bf0 drivers/infiniband/sw/rxe/rxe_qp.c:347 rxe_create_qp+0x231/0x3b0 drivers/infiniband/sw/rxe/rxe_verbs.c:442 create_qp+0x5ac/0x960 drivers/infiniband/core/verbs.c:1241 ib_create_qp_kernel+0x9d/0x310 drivers/infiniband/core/verbs.c:1352 ib_create_qp include/rdma/ib_verbs.h:3722 [inline] create_mad_qp+0x177/0x2d0 drivers/infiniband/core/mad.c:2910 ib_mad_port_open drivers/infiniband/core/mad.c:2991 [inline] ib_mad_init_device+0xd4d/0x13f0 drivers/infiniband/core/mad.c:3082 add_client_context+0x405/0x5e0 drivers/infiniband/core/device.c:720 enable_device_and_get+0x1cd/0x3b0 drivers/infiniband/core/device.c:1331 ib_register_device drivers/infiniband/core/device.c:1419 [inline] ib_register_device+0x854/0xb50 drivers/infiniband/core/device.c:1365 rxe_register_device+0x2fe/0x3b0 drivers/infiniband/sw/rxe/rxe_verbs.c:1146 rxe_add+0x1331/0x1710 drivers/infiniband/sw/rxe/rxe.c:248 rxe_net_add+0x8c/0xe0 drivers/infiniband/sw/rxe/rxe_net.c:543 rxe_newlink drivers/infiniband/sw/rxe/rxe.c:270 [inline] rxe_newlink+0xa9/0xd0 drivers/infiniband/sw/rxe/rxe.c:251 nldev_newlink+0x30a/0x560 drivers/infiniband/core/nldev.c:1717 rdma_nl_rcv_msg+0x36d/0x690 drivers/infiniband/core/netlink.c:195 rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline] rdma_nl_rcv+0x2ee/0x430 drivers/infiniband/core/netlink.c:259 netlink_unicast_kernel net/netlink/af_netlink.c:1315 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1341 netlink_sendmsg+0x904/0xdf0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Freed by task 30779: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:46 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:366 [inline] ____kasan_slab_free mm/kasan/common.c:328 [inline] __kasan_slab_free+0xff/0x130 mm/kasan/common.c:374 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:1723 [inline] slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1749 slab_free mm/slub.c:3513 [inline] kfree+0xf6/0x560 mm/slub.c:4561 rxe_qp_from_init+0x161e/0x1bf0 drivers/infiniband/sw/rxe/rxe_qp.c:361 rxe_create_qp+0x231/0x3b0 drivers/infiniband/sw/rxe/rxe_verbs.c:442 create_qp+0x5ac/0x960 drivers/infiniband/core/verbs.c:1241 ib_create_qp_kernel+0x9d/0x310 drivers/infiniband/core/verbs.c:1352 ib_create_qp include/rdma/ib_verbs.h:3722 [inline] create_mad_qp+0x177/0x2d0 drivers/infiniband/core/mad.c:2910 ib_mad_port_open drivers/infiniband/core/mad.c:2991 [inline] ib_mad_init_device+0xd4d/0x13f0 drivers/infiniband/core/mad.c:3082 add_client_context+0x405/0x5e0 drivers/infiniband/core/device.c:720 enable_device_and_get+0x1cd/0x3b0 drivers/infiniband/core/device.c:1331 ib_register_device drivers/infiniband/core/device.c:1419 [inline] ib_register_device+0x854/0xb50 drivers/infiniband/core/device.c:1365 rxe_register_device+0x2fe/0x3b0 drivers/infiniband/sw/rxe/rxe_verbs.c:1146 rxe_add+0x1331/0x1710 drivers/infiniband/sw/rxe/rxe.c:248 rxe_net_add+0x8c/0xe0 drivers/infiniband/sw/rxe/rxe_net.c:543 rxe_newlink drivers/infiniband/sw/rxe/rxe.c:270 [inline] rxe_newlink+0xa9/0xd0 drivers/infiniband/sw/rxe/rxe.c:251 nldev_newlink+0x30a/0x560 drivers/infiniband/core/nldev.c:1717 rdma_nl_rcv_msg+0x36d/0x690 drivers/infiniband/core/netlink.c:195 rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline] rdma_nl_rcv+0x2ee/0x430 drivers/infiniband/core/netlink.c:259 netlink_unicast_kernel net/netlink/af_netlink.c:1315 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1341 netlink_sendmsg+0x904/0xdf0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Last potentially related work creation: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 __kasan_record_aux_stack+0xf5/0x120 mm/kasan/generic.c:348 kvfree_call_rcu+0x74/0x990 kernel/rcu/tree.c:3550 sctp_bind_addr_clean+0x135/0x1f0 net/sctp/bind_addr.c:125 sctp_association_free+0x294/0x7d0 net/sctp/associola.c:359 sctp_cmd_delete_tcb net/sctp/sm_sideeffect.c:940 [inline] sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1324 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1195 [inline] sctp_do_sm+0x366d/0x4ee0 net/sctp/sm_sideeffect.c:1166 sctp_assoc_bh_rcv+0x386/0x6c0 net/sctp/associola.c:1054 sctp_inq_push+0x1da/0x270 net/sctp/inqueue.c:80 sctp_backlog_rcv+0x19e/0x5b0 net/sctp/input.c:344 sk_backlog_rcv include/net/sock.h:1035 [inline] __release_sock+0x134/0x3b0 net/core/sock.c:2774 release_sock+0x54/0x1b0 net/core/sock.c:3306 sctp_wait_for_connect+0x1cb/0x5d0 net/sctp/socket.c:9301 __sctp_connect+0x9a6/0xc30 net/sctp/socket.c:1244 sctp_connect net/sctp/socket.c:4808 [inline] sctp_inet_connect+0x15e/0x200 net/sctp/socket.c:4823 __sys_connect_file+0x155/0x1a0 net/socket.c:1896 __sys_connect+0x161/0x190 net/socket.c:1913 __do_sys_connect net/socket.c:1923 [inline] __se_sys_connect net/socket.c:1920 [inline] __x64_sys_connect+0x6f/0xb0 net/socket.c:1920 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Second to last potentially related work creation: kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38 __kasan_record_aux_stack+0xf5/0x120 mm/kasan/generic.c:348 kvfree_call_rcu+0x74/0x990 kernel/rcu/tree.c:3550 sctp_bind_addr_clean+0x135/0x1f0 net/sctp/bind_addr.c:125 sctp_association_free+0x294/0x7d0 net/sctp/associola.c:359 sctp_cmd_delete_tcb net/sctp/sm_sideeffect.c:940 [inline] sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1324 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1195 [inline] sctp_do_sm+0x366d/0x4ee0 net/sctp/sm_sideeffect.c:1166 sctp_assoc_bh_rcv+0x386/0x6c0 net/sctp/associola.c:1054 sctp_inq_push+0x1da/0x270 net/sctp/inqueue.c:80 sctp_backlog_rcv+0x19e/0x5b0 net/sctp/input.c:344 sk_backlog_rcv include/net/sock.h:1035 [inline] __release_sock+0x134/0x3b0 net/core/sock.c:2774 release_sock+0x54/0x1b0 net/core/sock.c:3306 sctp_close+0x447/0x940 net/sctp/socket.c:1533 inet_release+0x12e/0x280 net/ipv4/af_inet.c:428 inet6_release+0x4c/0x70 net/ipv6/af_inet6.c:476 __sock_release+0xcd/0x280 net/socket.c:649 sock_close+0x18/0x20 net/socket.c:1314 __fput+0x286/0x9f0 fs/file_table.c:280 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:175 [inline] exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae The buggy address belongs to the object at ffff888019e00680 which belongs to the cache kmalloc-64 of size 64 The buggy address is located 16 bytes inside of 64-byte region [ffff888019e00680, ffff888019e006c0) The buggy address belongs to the page: page:ffffea0000678000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x19e00 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffffea00007353c0 dead000000000005 ffff888010c41640 raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY), pid 6548, ts 147948706144, free_ts 147940569633 prep_new_page mm/page_alloc.c:2418 [inline] get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4149 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5369 alloc_pages+0x1a7/0x300 mm/mempolicy.c:2191 alloc_slab_page mm/slub.c:1793 [inline] allocate_slab mm/slub.c:1930 [inline] new_slab+0x32d/0x4a0 mm/slub.c:1993 ___slab_alloc+0x918/0xfe0 mm/slub.c:3022 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3109 slab_alloc_node mm/slub.c:3200 [inline] slab_alloc mm/slub.c:3242 [inline] __kmalloc+0x2fb/0x340 mm/slub.c:4419 kmalloc include/linux/slab.h:595 [inline] kzalloc include/linux/slab.h:724 [inline] tomoyo_get_name+0x234/0x480 security/tomoyo/memory.c:173 tomoyo_parse_name_union+0xbc/0x160 security/tomoyo/util.c:260 tomoyo_update_path_number_acl security/tomoyo/file.c:687 [inline] tomoyo_write_file+0x629/0x7f0 security/tomoyo/file.c:1034 tomoyo_write_domain2+0x116/0x1d0 security/tomoyo/common.c:1152 tomoyo_add_entry security/tomoyo/common.c:2042 [inline] tomoyo_supervisor+0xbc7/0xf00 security/tomoyo/common.c:2103 tomoyo_audit_path_number_log security/tomoyo/file.c:235 [inline] tomoyo_path_number_perm+0x419/0x590 security/tomoyo/file.c:734 security_file_ioctl+0x50/0xb0 security/security.c:1541 __do_sys_ioctl fs/ioctl.c:868 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0xb3/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1338 [inline] free_pcp_prepare+0x374/0x870 mm/page_alloc.c:1389 free_unref_page_prepare mm/page_alloc.c:3309 [inline] free_unref_page+0x19/0x690 mm/page_alloc.c:3388 qlink_free mm/kasan/quarantine.c:146 [inline] qlist_free_all+0x5a/0xc0 mm/kasan/quarantine.c:165 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:272 __kasan_slab_alloc+0xa2/0xc0 mm/kasan/common.c:444 kasan_slab_alloc include/linux/kasan.h:259 [inline] slab_post_alloc_hook mm/slab.h:519 [inline] slab_alloc_node mm/slub.c:3234 [inline] slab_alloc mm/slub.c:3242 [inline] kmem_cache_alloc+0x202/0x3a0 mm/slub.c:3247 prepare_creds+0x3f/0x7b0 kernel/cred.c:260 access_override_creds fs/open.c:351 [inline] do_faccessat+0x3f4/0x850 fs/open.c:415 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Memory state around the buggy address: ffff888019e00580: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc ffff888019e00600: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc >ffff888019e00680: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ^ ffff888019e00700: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc ffff888019e00780: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc ==================================================================